Best book/course/playlist to learn Oscilloscope?

As a hobbyist learning to build electronics, I've finally purchased my own oscilloscope

But this thing is extremely complicated, and i would like to become fluent with how to use it

Can anyone recommend any books or courses or YouTube playlists to get a really good foundation of how they work and how to really take advantage of their features?

Most all of the resources i found were either one-off intro tutorials or ridiculously specific features

I'm more than willing to pay some money for a good course or book on the subject, so I'd anyone knows good resources, please let me know!

Please and thank you!